How much does sprinkler winterization cost in Calgary?

Professional sprinkler winterization in Calgary costs $80 to $150 for most residential systems depending on the number of zones. J.G. Irrigation offers flat-rate pricing with no surprise fees. Call 587-433-4795 for an exact quote.

When should I winterize my sprinklers in Calgary?

Calgary sprinkler systems should be winterized before the first hard freeze, typically between late September and mid-October. Booking by September is recommended as appointment slots fill up quickly. A hard freeze (below -4°C overnight) can crack irrigation pipes within hours.

What happens if you don't winterize your sprinklers in Calgary?

Skipping winterization in Calgary can result in cracked pipes, burst valves, broken backflow preventers, and damaged sprinkler heads from ice expansion. Repair costs from freeze damage typically run $300 to $1,500 or more — far exceeding the cost of a professional blowout.

Can I winterize my own sprinkler system?

DIY sprinkler blowouts require a compressor rated at 20+ CFM at 50 PSI and precise knowledge of your zone layout. Improper technique can damage head diaphragms, crack PVC fittings, or leave water in low spots that will freeze. Most Calgary homeowners find professional blowout service the safer and more reliable option.

When should I turn on my sprinklers in Calgary in spring?

The safe window to activate your Calgary sprinkler system is mid-May to early June, once overnight temperatures are consistently above 0°C and the ground has fully thawed to at least 6 inches deep. Activating too early risks pipe damage from ground frost.

What does a spring sprinkler startup include in Calgary?

A professional spring startup includes slowly opening the main water supply valve, pressurizing each zone, inspecting every sprinkler head for damage, adjusting head rotation and arc, checking the backflow preventer, testing the controller schedule, and confirming full coverage across all zones.

How do I know if my sprinkler system has a leak?

Common signs of a Calgary sprinkler leak include soggy or waterlogged patches on your lawn, a sudden spike in your water bill, uneven watering across zones, sprinkler heads that stay up after the system shuts off, unusually green stripes in the grass, and soft or sinking spots in the yard.

How fast can J.G. Irrigation fix a broken sprinkler system?

J.G. Irrigation offers same-week sprinkler repair service across Calgary. Most residential repairs — broken heads, leaking valves, stuck pop-ups — are completed in 1 to 3 hours. Call 587-433-4795 or book online for priority scheduling.

How much does sprinkler repair cost in Calgary?

Sprinkler repair in Calgary typically costs $75 to $250 for common issues like broken heads, stuck pop-ups, or clogged nozzles. Valve replacements run $100 to $300. Underground pipe repairs depend on depth and length but usually fall between $200 and $600 for residential systems.

Calgary Backflow Preventer Repair and Replacement | Irrigation Service | J.G. Irrigation

September 18, 2026
Categories

Calgary Backflow Preventer Repair and Replacement

The backflow preventer is a critical safety component on every Calgary irrigation system — required by Alberta plumbing code on all connections to municipal water supply. J.G. Irrigation diagnoses, rebuilds, and replaces backflow preventers on all residential and commercial Calgary irrigation systems. IA-certified technicians. Alberta code compliant. Same-visit service in most cases.

Backflow Preventer Problems: Diagnosis Guide

Symptom	Likely Cause	Solution	Cost
Water weeping from bonnet cap	Worn poppet seat or debris under seat	Rebuild kit (seat and spring)	$90-$150
Continuous drip from relief valve port	Failed check valve inside assembly	Rebuild or replace assembly	$90-$280
Visible crack in brass body	Freeze expansion damage (missed blowout)	Full assembly replacement	$180-$350
System pressure noticeably low	Partially seized backflow valve body	Rebuild or replace	$90-$280
Water spraying from bonnet side port	Cracked bonnet or failed O-ring	Bonnet replacement or rebuild	$90-$160

Rebuild vs Full Replacement

Most Calgary backflow preventer failures that occur during normal operation (not freeze damage) are repairable with a rebuild kit — poppet seat, spring, bonnet O-ring, and diaphragm components for $40-$80 in parts. Full replacement is required when the brass body is cracked (freeze damage), corroded, or when the body bore is damaged beyond seal restoration. J.G. Irrigation recommends replacement only when rebuild will not provide a durable repair — never as a default upsell.

Replacement Models Stocked

J.G. Irrigation carries Watts 800, Watts 009, Febco 765, and Wilkins 720A backflow preventers in the most common Calgary irrigation sizes (3/4 inch and 1 inch) on the service truck. Most backflow preventer replacements are completed same-visit without a parts-sourcing delay.

spring startup: The Best Time to Inspect

Backflow preventer condition is checked at every J.G. Irrigation spring startup visit — the first pressurization of the season is when freeze damage becomes visible. If you suspect your system was not properly blown out last fall, call J.G. Irrigation for a startup visit before opening the main valve yourself. A cracked backflow preventer under full pressure can discharge significant water volume before you can reach the shutoff.

Calgary Backflow Preventer Service — Same-Day Repair or Replacement
IA-Certified • Alberta Code Compliant • All Major Brands • All Calgary Areas

☎ 587-433-4795 Repair Service →

J.G. Irrigation — Calgary Irrigation Services

IA-Certified Specialists · All Calgary Communities · Free Quotes · 587-433-4795

Get in touch with us today for expert assistance, quick responses, and reliable service you can trust.